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Issue
Korean Journal of Chemical Engineering,
Vol.25, No.3, 446-450, 2008
Application of physical vapor deposition process to modify activated carbon fibers for ozone reduction
Lin YC, Chang CL, Lin TS, Bai H, Yan MG, Ko FH, Wu CT, Huang CH
This study utilized the activated carbon fiber (ACF) modified with metal catalyst via physical vapor deposition (PVD) process (ACF/PVD) to diminish ozone. Furthermore, the ozone removal efficiency of ACF/PVD was compared with that of original ACF and ACF modified with metal catalyst via impregnation process (ACF/impregnation). In addition to the kinds of coated metal and the inlet ozone concentrations, the effects of the coating thickness and the reaction temperature on ACF/PVD for ozone removal were also examined. The results indicate that the ozone removal efficiency of ACF/PVD is better than that of original ACF and ACF/impregnation. The ozone removal efficiency of different metal-coated ACF/PVD in the superior order is gold (Au), and manganese (Mn). The increase of Au-coated thickness (3 nm to 80 nm) on ACF/PVD will enhance the ozone removal. However, when the Mn-coated thickness on ACF/PVD is larger than 15 nm, the ozone removal efficiency displays a declining trend. Furthermore, a higher reaction temperature will result in a better ozone removal of ACF/PVD and the original ACF.
Keywords: Ozone; Activated Carbon; Physical Vapor Deposition; Adsorption
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[Cited By]
  1. Mok YS, Koh DJ, Shin DN, Kim KT, Korean Journal of Chemical Engineering, 26(6), 1613, 2009
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